FR2755481B1 - DEVICE FOR HOLDING IN POSITION AND UNDER LOAD OF A HYDRAULIC CYLINDER - Google Patents
DEVICE FOR HOLDING IN POSITION AND UNDER LOAD OF A HYDRAULIC CYLINDERInfo
- Publication number
- FR2755481B1 FR2755481B1 FR9613778A FR9613778A FR2755481B1 FR 2755481 B1 FR2755481 B1 FR 2755481B1 FR 9613778 A FR9613778 A FR 9613778A FR 9613778 A FR9613778 A FR 9613778A FR 2755481 B1 FR2755481 B1 FR 2755481B1
- Authority
- FR
- France
- Prior art keywords
- cylinder
- valve
- holding
- hydraulic cylinder
- under load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
- Jigs For Machine Tools (AREA)
- Fluid-Damping Devices (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Gripping On Spindles (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The maintenance device consists of a hydraulic insulation unit (2) mounted between the supply circuits of a cylinder (1). The insulation unit (2) comprises a sluice (9) which has, at each of its two openings, an anti-return valve, one of which, the primary valve (11) is hydraulically connected to the outlet chamber (6) of the shaft (7) of the cylinder (1) and opens toward said chamber; and a safety valve (13) opening in the same direction, with the latter valve closing at a different rate than the primary valve closes. The invention is useful for maintaining the shaft of any cylinder in position, particularly a charged cylinder, and it is of interest to manufacturers of hydraulic devices, particularly lifting cylinders, as well as those who use them.
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9613778A FR2755481B1 (en) | 1996-11-07 | 1996-11-07 | DEVICE FOR HOLDING IN POSITION AND UNDER LOAD OF A HYDRAULIC CYLINDER |
DE1997627307 DE69727307T2 (en) | 1996-11-07 | 1997-11-06 | Device for holding the shaft of a hydraulic cylinder in position |
UA99063105A UA46875C2 (en) | 1996-11-07 | 1997-11-06 | DEVICE FOR HOLDING THE HYDRAULIC CYLINDER STOCK IN PLACE |
AT97913266T ATE258274T1 (en) | 1996-11-07 | 1997-11-06 | HOLDING DEVICE FOR A HYDRAULIC WORKING CYLINDER ROD |
EP97913266A EP0935715B1 (en) | 1996-11-07 | 1997-11-06 | Device for holding in position the rod of a pressure cylinder |
CA002270579A CA2270579A1 (en) | 1996-11-07 | 1997-11-06 | Device for holding in position the rod of a pressure cylinder |
ES97913266T ES2216132T3 (en) | 1996-11-07 | 1997-11-06 | MAINTENANCE DEVICE IN POSITION OF THE VASTAGO OF A HYDRAULIC CAT. |
PCT/FR1997/001994 WO1998020260A2 (en) | 1996-11-07 | 1997-11-06 | Device for holding in position the rod of a pressure cylinder |
RU99112128/06A RU2191298C2 (en) | 1996-11-07 | 1997-11-06 | Device for locking rod of hydraulic jack |
CN97199511A CN1103411C (en) | 1996-11-07 | 1997-11-06 | Device for holding in position the rod of a pressure cylinder |
US08/966,186 US5913810A (en) | 1996-11-07 | 1997-11-07 | Position maintenance device for the shaft of a hydraulic cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9613778A FR2755481B1 (en) | 1996-11-07 | 1996-11-07 | DEVICE FOR HOLDING IN POSITION AND UNDER LOAD OF A HYDRAULIC CYLINDER |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2755481A1 FR2755481A1 (en) | 1998-05-07 |
FR2755481B1 true FR2755481B1 (en) | 1998-12-24 |
Family
ID=9497542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9613778A Expired - Fee Related FR2755481B1 (en) | 1996-11-07 | 1996-11-07 | DEVICE FOR HOLDING IN POSITION AND UNDER LOAD OF A HYDRAULIC CYLINDER |
Country Status (11)
Country | Link |
---|---|
US (1) | US5913810A (en) |
EP (1) | EP0935715B1 (en) |
CN (1) | CN1103411C (en) |
AT (1) | ATE258274T1 (en) |
CA (1) | CA2270579A1 (en) |
DE (1) | DE69727307T2 (en) |
ES (1) | ES2216132T3 (en) |
FR (1) | FR2755481B1 (en) |
RU (1) | RU2191298C2 (en) |
UA (1) | UA46875C2 (en) |
WO (1) | WO1998020260A2 (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6935409B1 (en) | 1998-06-08 | 2005-08-30 | Thermotek, Inc. | Cooling apparatus having low profile extrusion |
BR0106717A (en) | 2000-06-01 | 2002-04-16 | Bristol Myers Squibb Pharma Co | Compounds, pharmaceutical composition and uses of innovative lactam compounds |
US6776784B2 (en) | 2001-09-06 | 2004-08-17 | Core Medical, Inc. | Clip apparatus for closing septal defects and methods of use |
US20060052821A1 (en) | 2001-09-06 | 2006-03-09 | Ovalis, Inc. | Systems and methods for treating septal defects |
US6702835B2 (en) | 2001-09-07 | 2004-03-09 | Core Medical, Inc. | Needle apparatus for closing septal defects and methods for using such apparatus |
US9113577B2 (en) | 2001-11-27 | 2015-08-18 | Thermotek, Inc. | Method and system for automotive battery cooling |
US7108324B2 (en) * | 2002-06-28 | 2006-09-19 | Lear Corporation | Vehicle seat adjuster |
RU2358175C2 (en) * | 2004-07-12 | 2009-06-10 | Тифенбах Контрол Системс Гмбх | Opened check valve |
US8579936B2 (en) | 2005-07-05 | 2013-11-12 | ProMed, Inc. | Centering of delivery devices with respect to a septal defect |
EP1741936A1 (en) * | 2005-07-08 | 2007-01-10 | THOMAS MAGNETE GmbH | Feed controlling valve for fluids |
US7846179B2 (en) | 2005-09-01 | 2010-12-07 | Ovalis, Inc. | Suture-based systems and methods for treating septal defects |
ITMI20060426A1 (en) * | 2006-03-10 | 2007-09-11 | Faac Spa | HANDLING SYSTEM WITH HYDRAULIC DOUBLE ACTING ACTUATOR FOR GATE HANDLING |
TWM315185U (en) * | 2006-12-15 | 2007-07-11 | Wei-Te Hsu | Vehicular hydraulic tank reverse safety device |
US8262058B2 (en) * | 2008-08-28 | 2012-09-11 | Kot Norbert J | Balanced pilot operated check valve |
WO2013122039A1 (en) * | 2012-02-16 | 2013-08-22 | 株式会社コスメック | Cylinder device having power assist mechanism |
US9611871B2 (en) | 2013-09-13 | 2017-04-04 | Norbert J. Kot | Pneumatic valve assembly and method |
CN104019080A (en) * | 2014-06-23 | 2014-09-03 | 柳州柳工液压件有限公司 | Oil supplement cylinder |
FR3049663B1 (en) * | 2016-03-31 | 2018-03-16 | Lohr Industrie | DOUBLE-CLOSING SAFETY BLOCK FOR HYDRAULIC CYLINDER |
CN110831750B (en) * | 2017-08-01 | 2022-03-04 | 穆格股份有限公司 | Device for controlling switching of hydraulic cylinder |
WO2019030354A1 (en) * | 2017-08-11 | 2019-02-14 | Eaton Intelligent Power Limited | Manifold with a load holding valve and a drain valve |
EP3660365B1 (en) * | 2018-11-27 | 2021-07-21 | Hamilton Sundstrand Corporation | Servo valve |
DE102019218400A1 (en) * | 2019-11-27 | 2021-05-27 | Hawe Hydraulik Se | Valve cone, load-holding valve with valve cone and method of assembling a check valve |
FR3104653B1 (en) | 2019-12-17 | 2021-11-19 | Lohr Ind | SAFETY BLOCK WITH SOLENOID VALVE FOR CYLINDER AND HYDRAULIC CIRCUIT CONTAINING SEVERAL CYLINDERS EQUIPPED WITH SUCH BLOCKS |
DE102020109615A1 (en) | 2020-04-07 | 2021-10-07 | Neumeister Hydraulik Gmbh | DEVICE FOR HOLDING A SHAFT OF A HYDRAULIC CYLINDER IN POSITION AND METHOD OF UNLOCKING AND LOCKING A SECONDARY CHECK VALVE OF THE DEVICE |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2702044A (en) * | 1953-11-23 | 1955-02-15 | Albert D Johnston | Automatic supply and exhaust valve |
US2797550A (en) * | 1954-05-05 | 1957-07-02 | Stelzer William | Hydraulic elevators |
US3381587A (en) * | 1965-09-10 | 1968-05-07 | Deere & Co | Hydraulic control system |
DE2036547C3 (en) * | 1970-07-23 | 1973-10-31 | Fried. Krupp Gmbh, 4300 Essen | Braking and locking device for a hydrostatic drive |
DE2305835A1 (en) * | 1973-02-07 | 1974-08-15 | Danfoss As | HYDRAULIC CONTROL DEVICE, IN PARTICULAR STEERING DEVICE |
US4286432A (en) * | 1979-08-30 | 1981-09-01 | Caterpillar Tractor Co. | Lock valve with variable length piston and hydraulic system for a work implement using the same |
US4355565A (en) * | 1980-03-24 | 1982-10-26 | Caterpillar Tractor Co. | Fluid circuit with zero leak load check and by-pass valve |
IT213216Z2 (en) * | 1987-05-15 | 1989-11-09 | Oil Control Spa | IMPROVEMENTS WITH HYDRAULIC CONTROL VALVE, IN PARTICULAR FOR HYDRAULIC CIRCUITS WITH DISTRIBUTOR EVEN WITH CLOSED CENTER |
US4913190A (en) * | 1989-04-24 | 1990-04-03 | Deere & Company | Detent mechanism for a control valve |
SU1753068A1 (en) * | 1990-06-07 | 1992-08-07 | Московское станкостроительное производственное объединение "Красный пролетарий" | Unilateral water lock |
US5261456A (en) * | 1992-11-02 | 1993-11-16 | Deere & Company | Transmission engagement override valve |
NL1000038C2 (en) * | 1995-04-04 | 1996-10-07 | Applied Power Inc | Hydraulic tilting device for a cabin. |
-
1996
- 1996-11-07 FR FR9613778A patent/FR2755481B1/en not_active Expired - Fee Related
-
1997
- 1997-11-06 RU RU99112128/06A patent/RU2191298C2/en active
- 1997-11-06 WO PCT/FR1997/001994 patent/WO1998020260A2/en active IP Right Grant
- 1997-11-06 CN CN97199511A patent/CN1103411C/en not_active Expired - Lifetime
- 1997-11-06 EP EP97913266A patent/EP0935715B1/en not_active Expired - Lifetime
- 1997-11-06 UA UA99063105A patent/UA46875C2/en unknown
- 1997-11-06 DE DE1997627307 patent/DE69727307T2/en not_active Expired - Lifetime
- 1997-11-06 ES ES97913266T patent/ES2216132T3/en not_active Expired - Lifetime
- 1997-11-06 AT AT97913266T patent/ATE258274T1/en not_active IP Right Cessation
- 1997-11-06 CA CA002270579A patent/CA2270579A1/en not_active Abandoned
- 1997-11-07 US US08/966,186 patent/US5913810A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2270579A1 (en) | 1998-05-14 |
US5913810A (en) | 1999-06-22 |
DE69727307T2 (en) | 2004-11-18 |
WO1998020260A3 (en) | 2002-10-03 |
EP0935715B1 (en) | 2004-01-21 |
CN1103411C (en) | 2003-03-19 |
UA46875C2 (en) | 2002-06-17 |
DE69727307D1 (en) | 2004-02-26 |
CN1244236A (en) | 2000-02-09 |
ATE258274T1 (en) | 2004-02-15 |
EP0935715A1 (en) | 1999-08-18 |
FR2755481A1 (en) | 1998-05-07 |
RU2191298C2 (en) | 2002-10-20 |
WO1998020260A2 (en) | 1998-05-14 |
ES2216132T3 (en) | 2004-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
TP | Transmission of property | ||
ST | Notification of lapse |
Effective date: 20070731 |